Bird-peck preventing cable and manufacture method thereof

A manufacturing method and anti-bird pecking technology, applied in the field of cables, can solve the problems of small moisture permeability coefficient and difficulty in effectively resisting bird invasion

Inactive Publication Date: 2018-01-12
沈群华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this patent, there is an additional layer of steel strip coated with anti-corrosion materials, and a thicker layer of high molecular polyethylene with a small moisture permeability coefficient is added on the outermost layer, so that the life of the cable is more than doubled; and in the electric field strength When it is higher, the shielding performance is nearly double that of the original cable; in the above-mentioned patents, the outer layer uses a high-density or high-molecular polyolefin sheath, which is a conventional material in the prior art. Facts have proved that it is extremely difficult to effectively resist The role of bird infestation

Method used

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  • Bird-peck preventing cable and manufacture method thereof
  • Bird-peck preventing cable and manufacture method thereof
  • Bird-peck preventing cable and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] please see figure 1 , anti-bird pecking optical cable, which includes four loose tubes 2 distributed outside the strength member 3, a protective layer 4 outside the loose tube, an inner sheath 5 outside the protective layer, and located between the inner sheath The outer outer sheath 7 contains six optical fibers 1 in each loose tube, and is characterized in that there is an anti-peck layer 6 between the inner sheath and the outer sheath, and the anti-peck layer is made of the following raw materials in parts by weight Composition: medium-density polyethylene or low-density polyethylene or high-density polyethylene: 50-80 parts; grade 617 or grade 677 epoxy resin: 10-20 parts; diameter 10-80 μm, length / diameter ratio 5-10 ultrafine steel fibers, glass fibers with a length of 0.05-0.2mm and a diameter of 0.03-0.3mm, and silica optical fibers with a diameter of 6.5-260μm and a length of 0.03-0.3mm: 40-60 parts; EVA Hot melt adhesive: 5-10 parts; antioxidant for cable she...

Embodiment 2

[0063] please see figure 2 , anti-bird pecking optical cable, which includes four loose tubes 2 distributed outside the reinforcement 3 and a large filling rope 21, a protective layer 4 located outside the loose tube and the large filled rope, located outside the protective layer The inner sheath 5, the outer sheath 7 outside the inner sheath, each loose tube contains at least one optical fiber 1, which is characterized in that there is an anti-peck layer 6 between the inner sheath and the outer sheath, The anti-peck layer is composed of the following raw materials in parts by weight: medium-density polyethylene or low-density polyethylene or high-density polyethylene: 50-80 parts; epoxy resin with brand 617 or brand 677: 10-20 parts parts; ultra-fine steel fibers with a diameter of 10-80 μm and a length / diameter ratio of 5-10; glass fibers with a length of 0.05-0.2 mm and a diameter of 0.03-0.3 mm; and a diameter of 6.5-260 μm. mm silica optical fiber: 40-60 parts; EVA hot-...

Embodiment 3

[0074] please see image 3 , anti-bird pecking optical cable, which includes four loose tubes 2 distributed outside the reinforcement 3, small filling ropes 22 located in the outer gaps of adjacent loose tubes, outside the loose tubes and small filling ropes The protective layer 4, the inner sheath 5 outside the protective layer, the outer sheath 7 outside the inner sheath, each loose tube contains sixteen optical fibers 1, and the optical fibers are located in the optical fiber ribbon , the optical fiber ribbon is located in the loose tube, characterized in that there is an anti-pecking layer 6 between the inner sheath and the outer sheath, and the anti-pecking layer is composed of the following raw materials in parts by weight: medium density polyethylene or low density polyethylene Ethylene or high-density polyethylene: 50-80 parts; epoxy resin with grade 617 or grade 677: 10-20 parts; ultra-fine steel fibers with a diameter of 10-80 μm and a length / diameter ratio of 5-10 a...

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Abstract

The invention belongs to the technical field of cables, and particularly relates to a bird-peck preventing cable. The cable comprises a plurality of loose tubes distributed outside a reinforcing part,a protective layer positioned outside the loose tubes, an inner protective layer positioned outside the protective layer and an outer protective sleeve positioned outside the inner protective layer,wherein at least one light-guide fiber is arranged in each loose tube. The bird-peck preventing cable is characterized in that a peck-prevention layer is arranged between the inner protective layer and the outer protective sleeve, and is prepared from the following raw materials: medium-density polyethylene or low-density polyethylene or high-density polyethylene, epoxy resin, superfine steel fibers and glass fibers and silicon dioxide optical fibers, EVA hot melt glue, antioxidant, aluminum hydroxide, paraffin and carbon black master batches. The invention further discloses a manufacture method of the bird-peck preventing cable. The bird-peck preventing cable is easy to manufacture, and has the main beneficial effects of good bird-peck prevention effect, high production speed, high finished product yield, compression resistance and impact resistance.

Description

[0001] This application is a divisional application of an invention patent application titled: A bird-pecking-proof optical cable and its manufacturing method, with an application date of March 10, 2015, and an application number of 201510104146.5. technical field [0002] The invention belongs to the technical field of cables, and in particular relates to a bird-pecking-proof optical cable and a manufacturing method thereof. Background technique [0003] In order to adapt to the survival of the environment, most of the birds that grow near the forest area have sharp cockroaches, which can damage cables, communication cable sheaths and insulation layers. In electric cables and communication optical cables, in order to facilitate identification, the insulating layer and loose tubes usually have multiple colors. After the sheath is pecked, the insulating layers and loose tubes of various colors look like colorful insects, and birds often eat them by mistake. Pecking the insula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44B29C47/02B29L11/00
CPCG02B6/4432G02B6/4486
Inventor 沈群华
Owner 沈群华
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